Fudo wrote:
i think wording it as 'do not touch me' would be rude and it seems to me the OP wants to treat this sensitively..
if nothing else 'please do not touch me' would be nice and still essentially the same message.. maybe add because 'please do not touch me because..' it's inappropriate, i don't know you etc whatever seems appropriate. but i don't claim any wisdom, was just my first thought on the matter.. i encounter this fairly often as i have ocd relating to mysophobia and so generally think all people are unclean and dangerous because of it, though i accept this is an irrational fear.. i've seen the difference between saying 'do not touch me' and 'please do not touch me'.. is sometimes small and insignificant, sometimes the difference between someone thinking i'm very rude and even aggressive or just scared and trying to inform as soon as possible.
fudo
Explaining directly would seem to be best here. Saying to this girl that she should always ask someone if it's ok to hug them and that it's best to hug people who she knows well because strangers/people she knows less well may not be comfortable with it or misinterpret it.
It seems that no one else is doing this. Also, there is a real danger about the misinterpretation, she may get into a situation that she didn't intend without a warning.